Abstract

During the last few years our group has focus on assessing mammalian embryos viability in order to improve methods currently used in different assisted reproductive techniques: embryo transfer procedures, in vitro embryo production, cultivation, and cryopreservation techniques. Besides morphometric characterization of in vivo and in vitro produced embryos, after embryo recovery/fertilization and during the in vitro cultivation we also applied different intravital staining tests. Fluoresceine diacetate (FDA) is a non fluorescent analog of fluoresceine, which can easily penetrate the cell membrane of the living cells and under cellular esterase activity is hydrolyzed to fluoresceine, which emit green fluorescence while exposed to a fluorescence source of 494-518 nm wave length.

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